Excavator



FIG. 1 is a rear, left-side, and top view of an excavator, showing the new design.

FIG. 2 is a right-side elevation view of the excavator.

FIG. 3 is a top plan view of the excavator.

FIG. 4 is an enlarged front elevation view of the excavator.

FIG. 5 is an enlarged rear elevation view of the excavator.

FIG. 6 is a left-side elevation view of the excavator; and,

FIG. 7 is a bottom plan view of the excavator.

The broken lines depict portions of the excavator that form no part of the claimed design. 

CLAIM The ornamental design for an excavator, as shown and described. 